WO2014198689A1 - Polyethercarbonat-polyoxymethylen-block-copolymere - Google Patents
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- WO2014198689A1 WO2014198689A1 PCT/EP2014/061969 EP2014061969W WO2014198689A1 WO 2014198689 A1 WO2014198689 A1 WO 2014198689A1 EP 2014061969 W EP2014061969 W EP 2014061969W WO 2014198689 A1 WO2014198689 A1 WO 2014198689A1
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
- C08G2/38—Block or graft polymers prepared by polymerisation of aldehydes or ketones on to macromolecular compounds
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/14—Manufacture of cellular products
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/44—Polycarbonates
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/71—Monoisocyanates or monoisothiocyanates
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/18—Block or graft polymers
- C08G64/183—Block or graft polymers containing polyether sequences
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/20—General preparatory processes
- C08G64/32—General preparatory processes using carbon dioxide
- C08G64/34—General preparatory processes using carbon dioxide and cyclic ethers
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0008—Foam properties flexible
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- C08G2110/00—Foam properties
- C08G2110/0025—Foam properties rigid
Definitions
- the present invention relates to a process for preparing polyethercarbonate-polyoxymethylene block copolymers, comprising the step of polymerizing formaldehyde in the presence of a polyether carbonate having at least one Zerewitinoff-active H atom. It further relates to polyethercarbonate-polyoxymethylene block copolymers obtainable by such a process and to their use for the production of polyurethane polymers.
- Block copolymers containing polyoxymethylene units in addition to other polymer and polycondensate units are described, for example, in GB 807589, EP 1 418 190 A1, US Pat. No. 3,754,053, US 2002/0016395, JP 04-306215, GB 1164997 and US Pat. No. 4,352,914.
- the other polymer or polycondensate units present in addition to polyoxymethylene units include polyalkylene glycol units, in particular polytetramethylene glycol and polyethylene glycol units, furthermore vinyl acetate-crotonic acid copolymer, methyl methacrylate-vinyloxyethylamine copolymer, vinyl acetate-allyl acetoacetate copolymer, vinyloxyethylamine Isobutyl methacrylate copolymer, dihydroxylated polybutadiene and difunctionalized polyethylene units.
- polyalkylene glycol units in particular polytetramethylene glycol and polyethylene glycol units
- vinyl acetate-crotonic acid copolymer methyl methacrylate-vinyloxyethylamine copolymer
- vinyl acetate-allyl acetoacetate copolymer vinyloxyethylamine Isobutyl methacrylate copolymer
- the preparation of polyethercarbonates having at least one Zerewitinoff-active H atom can be carried out by catalytic reaction of alkylene oxides (epoxides) and carbon dioxide in the presence of H-functional starter substances and has been intensively studied for more than 40 years (eg Inoue et al, Copolymerization of Carbon Dioxide and Epoxides with Organometallic Compounds, Macromolecular Chemistry 130, 210-220, 1969.)
- This reaction is schematically illustrated in Scheme (I), where R is an organic radical such as alkyl, alkylaryl, arylalkyl or aryl, which may in each case also contain heteroatoms such as, for example, O, S, Si, etc., and where a, b, c and d are an integer and R may differ in different repeat units, and where I) product for the polyether carbonate is merely to be understood so that blocks with the structure shown in the resulting polyether carbonate in principle as but the order, number and length of the blocks as
- Block copolymers containing polyoxymethylene units in addition to polyether carbonate units are not described above.
- this object has been achieved by a process for preparing polyethercarbonate-polyoxymethylene block copolymers, comprising the step of polymerizing formaldehyde, wherein the polymerization of formaldehyde is carried out in the presence of a polyether carbonate having at least one Zerewitinoff-active H atom.
- a polyethercarbonate-polyoxymethylene block copolymer is obtained.
- the resulting polyethercarbonate-polyoxymethylene block copolymers offer a number of advantages over existing mono-, bi- or higher-functional polymers.
- certain physical properties such as glass transition temperatures, melting ranges and / or viscosities over the length of the polyoxymethylene blocks and the Polyethercarbonat- blocks, their respective length in relation to each other and the composition of the polyether carbonate blocks, in particular their carbonate content, are selectively controlled.
- the partial crystallinity in the polyethercarbonate-polyoxymethylene block copolymers according to the invention is typically reduced, which likewise usually leads to a reduction of glass transition temperatures, melting points and / or viscosities.
- the presence of the polyethercarbonate blocks also typically leads to an increase in the chemical and thermal stability.
- the thermal stability can be characterized, for example, via the decomposition temperature and / or the temperature-dependent relative weight loss. This can be done for example via the thermogravimetric analysis (TGA), as described in the experimental part. For example, a higher decomposition temperature and / or a lower weight loss during heating to a certain temperature or a certain temperature range describe thermally more stable polymers.
- Polyoxymethylene homopolymers are typically limited to a functionality F ⁇ 2.
- the use of polyether carbonates with a functionality F> 2 makes access to polyethercarbonate-polyoxymethylene block copolymers having a functionality F> 2 possible.
- polyethercarbonate blocks offer the advantage that the proportion of polyoxyalkylene units which are prepared from the corresponding alkylene oxides is reduced by the amount of carbonate.
- This replacement of alkylene oxide building blocks with carbon dioxide leads, on the one hand, to an advantageous energy balance and, on the other hand, to an increased proportion of renewable raw materials in the product.
- the incorporation of formaldehyde in the form of polyoxymethylene units leads to a further reduction of the alkylene oxide content, which leads to an additional improvement of the energy balance of the product. Since formaldehyde is made from renewable resources such as e.g. Biomethanol or CO2 can be obtained, this can also increase the proportion of renewable resources in the product.
- Polyether carbonate-polyoxymethylene block copolymers in the context of the invention refer to polymeric compounds which contain at least one polyoxymethylene block and at least one polyethercarbonate block.
- a polyoxymethylene block in the sense of the invention denotes a polymeric structural unit (CH 2O) X with x> 1 which contains at least one CF 2 group bound to two oxygen atoms which is connected to further methylene groups or other polymeric structures via at least one of the oxygen atoms.
- Polyoxymethylene blocks (CH 2 O) X preferably contain on average x> 1 and x ⁇ 500, more preferably on average x> 1, 1 and x ⁇ 150 and particularly preferably on average x> 1.5 and x ⁇ 50 oxymethylene units.
- a polyether carbonate block in the sense of the invention denotes a polymeric structural unit -O [(C 2 R 1 R 2 R 3 R 4 O) x (CO 2 ) (C 2 R 1 R 2 R 3 R 4 O) y ] z -, with x> 1, y> 0 and z> 1, wherein R 1 , R 2 , R 3 and R 4 are independently hydrogen, an optionally additional heteroatoms such as nitrogen, oxygen, silicon, sulfur or phosphorus-containing alkyl or aryl radical and can differ in different repeat units.
- alkyl Generally, in the context of the entire invention, it includes substituents from the group n-alkyl, such as methyl, ethyl or propyl, branched alkyl and / or cycloalkyl.
- aryl generally in the context of the entire invention substituents from the group mononuclear carbo- or heteroaryl substituents such as phenyl and / or polynuclear carbo- or heteroaryl substituents, optionally with other alkyl groups and / or heteroatoms such as nitrogen, oxygen, silicon, sulfur or Phosphorus may be substituted.
- radicals R 1, R 2, R 3 and / or R 4 may be linked within a repeating unit together so that they form cyclic structures, such as a cycloalkyl residue, which is installed on two adjacent carbon atoms in the polymer chain.
- Various polyoxymethylene and / or polyethercarbonate blocks may be bonded together directly or indirectly via spacers.
- spacers examples include 1,3-propanediol, 1,4-butanediol, hexamethylenediol, 4-hydroxybutyric acid, 4-hydroxypentanoic acid, 6-hydroxyhexanoic acid, maleic acid, phthalic acid, glutaric acid, bisphenol A, bisphenol F, trimethylolpropane, glycerol, castor oil, Pentaerythritol or sorbitol in their respective deprotonated form.
- Formaldehyde may be in a gaseous state, optionally as a mixture with inert gases, e.g. Nitrogen or argon or as a mixture with gaseous, supercritical or liquid carbon dioxide, or as a formaldehyde solution.
- Formaldehyde solutions may be aqueous formaldehyde solutions having a formaldehyde content between 1% by weight and 37% by weight, which may optionally contain up to 15% by weight of methanol as stabilizer.
- solutions of formaldehyde in polar organic solvents e.g.
- Methanol or higher monohydric or polyhydric alcohols 1,4-dioxane, acetonitrile, N, N-dimethylformamide (DMF), N, N-dimethylacetamide, dimethyl sulfoxide (DMSO), cyclic carbonates, e.g. Ethylene carbonate or propylene carbonate, N-methylpyrrolidone ( ⁇ ), sulfolane, tetramethylurea, N, N'-dimethylethyleneurea or mixtures thereof with one another, are used with water and / or other solvents. The presence of other substances in solution is also included. The use of mixtures of gaseous formaldehyde with argon, nitrogen or carbon dioxide is preferred.
- solutions of formaldehyde in aprotic polar organic solvents e.g. 1,4-dioxane, acetonitrile, N, N-dimethylformamide (DMF), N, N-dimethylacetamide, dimethylsulfoxide (DMSO), cyclic carbonates, e.g. Ethylene carbonate or propylene carbonate, N-methylpyrrolidone ( ⁇ ), sulfolane, tetramethylurea, N, N'-dimethylethyleneurea or mixtures thereof with one another, and / or other solvents.
- aprotic polar organic solvents e.g. 1,4-dioxane, acetonitrile, N, N-dimethylformamide (DMF), N, N-dimethylacetamide, dimethylsulfoxide (DMSO), cyclic carbonates, e.g. Ethylene carbonate or propylene carbonate, N-methylpyrrolidone ( ⁇ ), s
- formaldehyde can be generated in situ from a suitable source of formaldehyde.
- a suitable source of formaldehyde substances may be used which contain chemically bound formaldehyde, usually in the form of oxymethylene groups, and those disclosed in US Pat suitable conditions are able to release formaldehyde.
- suitable conditions for release may include, for example, elevated temperatures and / or the use of catalysts and / or the presence of acids, bases or other reagents that result in the release of monomeric formaldehyde.
- Preferred formaldehyde sources are 1,3,5-trioxane, paraformaldehyde, high molecular weight polyoxymethylene (POM), dimethylacetal, 1,3-dioxolane, 1,3-dioxane and / or 1,3-dioxepane, more preferably 1,3, 5-trioxane and paraformaldehyde.
- POM high molecular weight polyoxymethylene
- the polyether carbonates are mono-, bi- or higher-functional oligomeric or polymeric compounds which may be composed, for example, of epoxides and carbon dioxide as starting materials and structural units - [C 2 R 1 R 2 R 3 R 4 0) x (CO 2 ) (C 2 R 1 R 2 R 3 R 4 O) y ] z -, where x> 1, y> 0 and z> 1 and R 1 , R 2 , R 3 and R 4 are independent each other may be hydrogen, an optionally additional heteroatoms such as nitrogen, oxygen, silicon, sulfur or phosphorus containing alkyl or aryl radical and may differ in different repeat units.
- the radicals R 1, R 2, R 3 and / or R 4 may optionally be linked so as to form cyclic structures, such as a cycloalkyl residue, which is installed on two adjacent carbon atoms in the polymer chain.
- the polyether carbonates according to the invention may contain, in addition to the structural units -O [(C 2 R 1 R 2 R 3 R 4 O) x (CO 2 ) (C 2 R 1 R 2 R 3 R 4 O) y ] z , further structural units , which were used in the preparation of polyether as starter compounds.
- Such further structural units are, for example, difunctional or higher-functional alcohols, such as ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, glycerol, 1,3-propanediol, 1,4-butanediol, hexamethylenediol, bisphenol A, bisphenol F, trimethylolpropane, castor oil, pentaerythritol or sorbitol, di - or polycarboxylic acids such as maleic acid, phthalic acid, glutaric acid, hydroxycarboxylic acids such as 4-hydroxybutyric acid, 4-hydroxypentanoic acid, 6-hydroxyhexanoic acid, and OH-terminated polyethers such as polyethylene glycol, polypropylene glycol, optionally in their respective deprotonated form.
- the polyether carbonates are preferably prepared from the starting materials starter compound, epoxide and carbon dioxide.
- polyether carbonates are achieved via terminal or polymer heteroatom-containing deprotonatable functional groups such as hydroxy groups, thiol groups, amino groups, carboxylic acid groups or carboxylic acid derivatives such as e.g. Amides made.
- terminal or polymer heteroatom-containing deprotonatable functional groups such as hydroxy groups, thiol groups, amino groups, carboxylic acid groups or carboxylic acid derivatives such as e.g. Amides made.
- suitable solvents are water, methanol or higher mono- or polyhydric alcohols, nonpolar organic solvents such as linear or branched alkanes or alkane mixtures, toluene, the various xylene isomers or mixtures thereof, mesitylene, mono- or polyhalogenated aromatics or alkanes such as For example, chlorobenzene, dichlorobenzene, dichloromethane, dichloroethane or tetrachloroethane, open-chain or cyclic ethers such as Tetrahydrofuran (THF) or methyl tert-butyl ether (MTBE), open-chain or cyclic esters, or polar aprotic solvents such as 1,4-dioxane, acetonitrile, N, N-dimethylformamide (DMF), N, N-dimethylacetamide, dimethyl sulfoxide ( DMSO), cyclic carbonates, for example ethylene carbonate or propylene carbonates
- liquid or supercritical carbon dioxide as a solvent in pure substance or as a mixture with one of the abovementioned solvents is also possible.
- open-chain or cyclic ethers such as tetrahydrofuran (THF) or methyl tert-butyl ether (MTBE), mono- or polychlorinated aromatics or alkanes such as chlorobenzene, dichlorobenzene, dichloromethane, dichloroethane, tetrachloroethane, open-chain or cyclic esters, polar aprotic solvents such as 1,4-dioxane, acetonitrile, N, N-dimethylformamide (DMF), N, N-dimethylacetamide, dimethyl sulfoxide (DMSO), cyclic carbonates, for example ethylene carbonate or propylene carbonate, N-methylpyrrolidone ( ⁇ ), sulfolane, tetramethylurea, N , N'
- the reaction takes place by polymerization of formaldehyde in the presence of a polyether carbonate having at least one Zerewitinoff-active H atom.
- the polyethercarbonate has at least two Zerewitinoff active H atoms.
- Zerewitinoff active H atoms are those in OH, SH, primary or secondary amino groups.
- Hydrogen bound to ⁇ , O or S is referred to as Zerewitinoff-active hydrogen (or "active hydrogen") when it provides methane by reaction with methyl magnesium iodide according to a method discovered by Zerewitinoff.
- the reaction can be carried out in a batch process, in a semi-batch process or in a continuous process.
- a polyethercarbonate optionally in admixture with a catalyst and / or a solvent, is initially charged and formaldehyde or the formaldehyde source in pure substance is metered in as gas or liquid or in solution of the reaction.
- the added amount of formaldehyde or formaldehyde equivalents contained in the formaldehyde source is chosen so that the desired molecular weight is achieved.
- a polyether carbonate if appropriate in a mixture with a catalyst and / or a solvent, is introduced and formaldehyde or the formaldehyde source in pure substance is added as gas or liquid or in solution of the reaction.
- formaldehyde or the formaldehyde source in pure substance is added as gas or liquid or in solution of the reaction.
- a portion of the reaction mixture is continuously withdrawn while continuously Polyether carbonate and optionally catalyst and / or a solvent and formaldehyde or the formaldehyde source is added in pure substance as a gas or liquid or in solution of the reaction.
- the proportions between the continuously metered amount of polyether carbonate and formaldehyde or contained in the formaldehyde source formaldehyde equivalents are chosen so that the desired molecular weight is achieved.
- the reaction is carried out, for example, at a temperature between 20 and 200 ° C, preferably between 20 and 120 ° C and more preferably between 40 and 120 ° C.
- the reaction temperature is above the temperature required under the given conditions for the release of formaldehyde or its incorporation in the form of oxymethylene units.
- the reaction temperature may be below the temperature suitable for the uncatalyzed release of formaldehyde or its incorporation.
- the catalysts for the preparation of the polyethercarbonate-polyoxymethylene block copolymers of the invention may also act as catalysts for the release of formaldehyde or its incorporation in the form of oxymethylene units.
- the pressure during the polymerization of formaldehyde or the formaldehyde equivalents in the presence of the polyether carbonate is generally 1 to 200 bar.
- the pressure is preferably 3 to 100 bar, more preferably 5 to 50 bar.
- the reaction time for the polymerization is, for example, 0.05 to 120 hours, preferably 0.5 to 48 hours, more preferably 1 to 24 hours.
- the reaction time is considered to be the time during which formaldehyde and polyether carbonate and optionally catalyst are in direct contact at the reaction temperature. In particular, in the implementation in the semi-batch process, such.
- gaseous formaldehyde is introduced into the reaction mixture, the reaction time depends on the amount of dosed formaldehyde or dosed formaldehyde equivalents required to achieve the desired molecular weight.
- the polymerization of formaldehyde continues in the presence of a catalyst.
- the catalyst is preferably selected from the group of basic catalysts and / or Lewis acidic catalysts.
- Catalyst compounds which catalyze the polymerization of formaldehyde.
- Particularly preferred are Lewis acid catalysts.
- Examples of basic catalysts are tertiary or aromatic basic amines such as e.g. Triethylamine and other trialkylamines, pyridine and mono- or polysubstituted pyridine derivatives, N-alkyl- or N-aryl-imidazole, 1,4-diazabicyclo [2.2.2] octane (DABCO), 4- (dimethylamino) -pyridine ( DMAP), 1,8-diazabicyclo [5.4.0] undec-7-ene (DBU),
- tertiary or aromatic basic amines such as e.g. Triethylamine and other trialkylamines, pyridine and mono- or polysubstituted pyridine derivatives, N-alkyl- or N-aryl-imidazole, 1,4-diazabicyclo [2.2.2] octane (DABCO), 4- (dimethylamino) -pyridine ( DMAP), 1,8-di
- TBD Triazabicyclo [4.4.0] dec-5-ene
- MTBD 5,7-triazabicyclo [4.4.0] dec-5-ene
- Lewis acidic catalysts contain, as the Lewis acidic center, one or more coordinatively unsaturated metal atoms, e.g. Metals of the third, fourth or fifth main group, for example boron, aluminum, tin, antimony or bismuth, metals of the third and fourth subgroups, for example scandium, yttrium, lanthanum, titanium, zirconium or hafnium, and metals of the series of lanthanides, vanadium, molybdenum Tungsten, metals of the eighth, ninth or tenth subgroup, in particular iron, cobalt, nickel, rhodium, iridium, palladium, platinum, copper or zinc.
- metals of the third, fourth or fifth main group for example boron, aluminum, tin, antimony or bismuth
- metals of the third and fourth subgroups for example scandium, yttrium, lanthanum, titanium, zirconium or hafnium, and metals of the series of
- the coordinatively unsaturated Lewis acidic center is characterized by the ability of nucleophilic molecules to bind to it.
- the coordinatively unsaturated Lewis acidic center may already be present in the compound used as a catalyst or form in the reaction mixture, e.g. by cleavage of a weakly bound nucleophilic molecule.
- Very particular preference is given to Lewis-acid catalysts which contain one or more zinc, tin or molybdenum atoms as the Lewis acid center, for example.
- DMC catalysts double metal cyanide catalysts
- the catalyst is usually employed in a molar ratio of 1: 10,000 to 10: 1, preferably 1: 1,000 to 1: 1, more preferably 1: 1,000 to 1:10, to the functional groups contained in the polyether carbonate.
- the polymerization of formaldehyde takes place in the presence of a catalyst which is identical to the catalyst used to prepare the polyether carbonate.
- the catalyst used to make the polyethercarbonate-polyoxymethylene block copolymers is identical to the DMC catalyst used to make the polyethercarbonates.
- the polyoxymethylene units are linked either directly or indirectly via one or more co-monomers or spacers with the polyether carbonates. It is also possible to link several polyoxymethylene units with one another via one or more co-monomers. Therefore, in a further embodiment of the process according to the invention, the polymerization continues to take place in the presence of a co-monomer.
- cyclic ethers especially epoxides such as ethylene oxide, propylene oxide, cyclohexene oxide or styrene oxide, oxetane, THF, dioxane, cyclic acetals such as 1,3-dioxolane or 1,3-dioxepane, cyclic esters such as ⁇ -butyrolactone , ⁇ -valerolactone, ⁇ -caprolactone, or cyclic acid anhydrides such as maleic anhydride or phthalic anhydride, or mixtures of two or more of the abovementioned comonomers in any desired composition are used.
- epoxides such as ethylene oxide, propylene oxide, cyclohexene oxide or styrene oxide, oxetane, THF, dioxane, cyclic acetals such as 1,3-dioxolane or 1,3-dioxepane,
- Preferred co-monomers are epoxides, cyclic acetals and cyclic esters, particularly preferred co-monomers are ethylene oxide, propylene oxide, 1,3-dioxolane, 1,3-dioxepane and ⁇ -caprolactone.
- the dosage of the co-monomers can be carried out in pure substance or in solution. In an alternative embodiment, the dosage of the co-monomers is carried out in admixture with formaldehyde or the formaldehyde source. The dosage of the co-monomers can be done before dosing, in parallel with the dosage or following the dosage of formaldehyde or the formaldehyde source.
- the co-monomers are at least partially identical to the epoxides used to prepare the polyether carbonates.
- the formaldehyde is introduced into the reaction vessel as gaseous formaldehyde.
- the polyethercarbonate used to prepare the polyethercarbonate-polyoxymethylene block copolymers is prepared by reacting a starter compound having active hydrogen atoms with carbon dioxide and with at least one epoxide (alkylene oxide), the reaction in the presence of a double metal cyanide catalyst (DMC catalyst ) and preferably wherein the crude product of this reaction, with the exception of a possible distillation step undergoes no further purification.
- a starter compound having active hydrogen atoms with carbon dioxide and with at least one epoxide (alkylene oxide)
- DMC catalyst double metal cyanide catalyst
- Starter compounds having active hydrogen atoms for the preparation of the polyether carbonates are preferably compounds having (number-average) molecular weights of> 18 g / mol to ⁇ 2000 g / mol, preferably> 62 g / mol to ⁇ 2000 g / mol and with a number of hydroxyl groups per molecule of> 1 to ⁇ 8, preferably> 2 to ⁇ 4.
- Examples of these are ethylene glycol, diethylene glycol, triethylene glycol, 1, 2-propylene glycol, dipropylene glycol, 1, 4-butanediol, hexamethylene glycol, bisphenol A, bisphenol F, trimethylolpropane, glycerol, castor oil, pentaerythritol, sorbitol, cane sugar, degraded starch and / or water.
- H-functional starter substances such compounds having number average molecular weights of> 450 g / mol to ⁇ 2000 g / mol or a mixture of a) compounds with number average molecular weights of> 62 g / mol to ⁇ 450 g / mol (hereinafter also referred to as "low molecular weight starter compound”) and b) compounds with number average molecular weights of> 450 g / mol to ⁇ 2000 g / mol (hereinafter also referred to as "starter polyols”), which preferably each contain> 1 to ⁇ 8, preferably> 2 to ⁇ 5 hydroxyl groups.
- low molecular weight starter compounds are ethylene glycol, diethylene glycol, triethylene glycol, 1,2-propylene glycol, dipropylene glycol, 1,4-butanediol, hexamethylene glycol, bisphenol A, bisphenol F, trimethylolpropane, glycerol, castor oil, pentaerythritol, sorbitol and / or cane sugar.
- starter polyols are, for example, polyether polyols prepared, for example, from the aforementioned low molecular weight starter compounds and epoxides, or poly (oxyalkylene) carbonate polyols prepared, for example, from the aforementioned initiator compounds, epoxides and CO2, these starter polyols each having number average molecular weights from> 450 g / mol to ⁇ 2000 g / mol.
- the epoxide (alkylene oxide) used for the preparation of the polyethercarbonates are compounds of the general formula (I):
- R 1 , R 2 , R 3 and R 4 are independently hydrogen or an optionally additional heteroatoms such as nitrogen, oxygen, silicon, sulfur or phosphorus-containing alkyl or aryl radical and may optionally be linked together such that they form cyclic structures, such as a cycloalkylene oxide.
- mixtures of different epoxides can also be used in the process according to the invention as long as the constituents of the epoxide mixture all fall under the general formula (I).
- mixtures of different epoxides it is also possible to change the mixing ratio of the epoxides during the metering stepwise or continuously.
- epoxides having 2-24 carbon atoms can be used for the process according to the invention.
- the alkylene oxides having 2-24 carbon atoms are, for example, one or more compounds selected from the group consisting of ethylene oxide, propylene oxide, 1-butene oxide, 2,3-butene oxide, 2-methyl-1,2-propene oxide (isobutene oxide), 1-pentoxide, 2,3-pentene oxide, 2-methyl-l, 2-butene oxide, 3-methyl-1, 2-butene oxide, 1-hexene oxide, 2,3-hexene oxide, 3,4-hexene oxide, 2-methyl- 1, 2-pentenoxide, 4-methyl-l, 2-pentenoxide, 2-ethyl-l, 2-butene oxide, 1-epoxide, 1-octene oxide, 1-nonene oxide, 1-decene oxide, 1-undecenoxide, 1 Dodecene oxide, 4-methyl-1, 2-pentene oxide, butadiene monoxide, isoprenone oxide, cyclopentene oxide, cyclohexene oxide, cyclohepten
- Allyl glycidyl ether, phenyl glycidyl ether, glycidyl methacrylate and epoxy functional alkyloxysilanes such as 3-glycidyloxypropyltrimethoxysilane, 3-glycidyloxypropyltriethoxysilane, 3-glycidyloxypropyltripropoxysilane, 3-glycidyloxypropylmethyldimethoxysilane, 3-glycidyloxypropyl-ethyldiethoxysilane and 3-glycidyloxypropyltrisopropoxysilane.
- epoxy functional alkyloxysilanes such as 3-glycidyloxypropyltrimethoxysilane, 3-glycidyloxypropyltriethoxysilane, 3-glycidyloxypropyltripropoxysilane, 3-glycidyloxypropylmethyldimethoxysilane, 3-glycidyloxy
- the epoxide of the general formula (I) is a terminal epoxide, wherein R 1 , R 2 and R 3 are hydrogen, and R 4 is hydrogen, an optionally additional heteroatoms such as nitrogen, oxygen, silicon, sulfur or phosphorus-containing alkyl or Aryl may be and may differ in different repeating units.
- DMC catalysts double metal cyanide catalysts which are suitable for the preparation of the polyether carbonates are known in principle from the prior art (see, for example, US Pat. No. 3,404,109, US Pat. No. 3,829,505, US Pat. No. 3,941,849 and US Pat. A 5 158 922). DMC catalysts, e.g. in US Pat. No.
- a typical example is the highly active DMC catalysts described in EP-A 700 949 which, in addition to a double metal cyanide compound (eg zinc hexacyanocobaltate (III)) and an organic complex ligand (eg tert.-butanol), have a polyether with a number average molecular weight greater than 500 g / mol. It is also possible to use the alkaline DMC catalysts disclosed in EP application number 10163170.3.
- a double metal cyanide compound eg zinc hexacyanocobaltate (III)
- an organic complex ligand eg tert.-butanol
- Cyanide-free metal salts suitable for preparing the double metal cyanide compounds preferably have the general formula (II)
- M is selected from the metal cations Zn 2+ , Fe 2+ , Ni 2+ , Mn 2+ , Co 2+ , Sr 2+ , Sn 2+ , Pb 2+ and, Cu 2+ , preferably M Zn 2+ , Fe 2+ , Co 2+ or Ni 2+ ,
- M is selected from the metal cations Fe 3+ , Al 3+ and Cr 3+ ,
- M is selected from the metal cations Mo 4+ , V 4+ and W 4+
- Suitable cyanide-free metal salts are zinc chloride, zinc bromide, zinc iodide, zinc acetate, zinc acetylacetonate, zinc benzoate, zinc nitrate, ferrous sulfate, ferrous bromide, ferrous chloride, cobalt (II) chloride, cobalt (II) thiocyanate, nickel (II) chloride and nickel (II) nitrate. It is also possible to use mixtures of different metal salts.
- Metal cyanide salts suitable for preparing the double metal cyanide compounds preferably have the general formula (VI) in which
- M ' is selected from one or more metal cations of the group consisting of Fe (II), Fe (III), Co (II), Co (III), Cr (II), Cr (III), Mn (II), Mn ( III), Ir (III), Ni (II), Rh (III), Ru (II), V (IV) and V (V), preferably M 'is one or more metal cations of the group consisting of Co (II), Co (III), Fe (II), Fe (III), Cr (III), Ir (III) and Ni (II)
- Y is selected from one or more metal cations of the group consisting of alkali metal
- A is selected from one or more anions the group consisting of halides (i.e., fluoride, chloride, bromide, iodide), hydroxide, sulfate, carbonate, cyanate, thiocyanate, isocyanate, isothiocyanate, carboxylate, oxalate or nitrate, and a, b and c are integer numbers, with the values for a, b and c chosen to give the electroneutrality of the metal cyanide salt; a is preferably 1, 2, 3 or 4; b is preferably 4, 5 or 6; c preferably has the value 0.
- Suitable metal cyanide salts are potassium hexacyanocobaltate (III), potassium hexacyanoferrate (II), potassium hexacyanoferrate (III), calcium hexacyanocobaltate (III) and lithium hexacyanocapaltate (III).
- Preferred double metal cyanide compounds which are contained in the DMC catalysts according to the invention are compounds of the general formula (VII)
- M Zn (II), Fe (II), Co (II) or Ni (II) and
- M ' Co (III), Fe (III), Cr (III) or Ir (III).
- Suitable double metal cyanide compounds are zinc hexacyanocobaltate (III), zinc hexacyanoiridate (III), zinc hexacyanoferrate (III) and cobalt (II) hexacyanocobaltate (III). Further examples of suitable double metal cyanide compounds are e.g. US Pat. No. 5,158,922 (column 8, lines 29-66). Zinc hexacyanocobaltate (III) is particularly preferably used.
- organic complex ligands added in the preparation of the DMC catalysts are described, for example, in US Pat. No. 5,158,922 (see in particular column 6, lines 9 to 65), US Pat. No. 3,404,109, US Pat. No. 3,829,505, US Pat. No. 3,941,849 and EP-A-700,949 EP-A 761 708, JP 4 145 123, US 5 470 813, EP-A 743 093 and WO-A 97/40086.
- water-soluble, organic compounds having heteroatoms, such as oxygen, nitrogen, phosphorus or sulfur, which can form complexes with the double metal cyanide compound are used as organic complex ligands.
- Preferred organic complex ligands are alcohols, aldehydes, ketones, ethers, esters, amides, ureas, nitriles, sulfides and mixtures thereof.
- Particularly preferred organic complex ligands are aliphatic ethers (such as dimethoxyethane), water-soluble aliphatic Alcohols (such as ethanol, isopropanol, n-butanol, iso-butanol, sec-butanol, tert-butanol, 2-methyl-3-buten-2-ol and 2-methyl-3-butyn-2-ol), compounds containing both aliphatic or cycloaliphatic ether groups as well as aliphatic hydroxyl groups (such as ethylene glycol mono-tert-butyl ether, diethylene glycol mono-tert-butyl ether, tripropylene glycol mono-methyl ether and 3-methyl-3-oxetan-methanol).
- Highly preferred organic complexing ligands are selected from one or more compounds of the group consisting of dimethoxyethane, tert-butanol, 2-methyl-3-buten-2-ol, 2-methyl-3-butyn-2-ol, ethylene glycol mono-tert , butyl ether and 3-methyl-3-oxetan-methanol.
- one or more complex-forming component (s) from the compound classes of polyethers, polyesters, polycarbonates, polyalkylene glycol sorbitan esters, polyalkylene glycol glycidyl ethers, polyacrylamide, poly (acrylamide-co-acrylic acid), polyacrylic acid, poly ( acrylic acid-co-maleic acid), polyacrylonitrile, polyalkyl acrylates, polyalkyl methacrylates, polyvinyl methyl ether, polyvinyl ethyl ether, polyvinyl acetate, polyvinyl alcohol, poly-N-vinylpyrrolidone, poly (N-vinylpyrrolidone-co-acrylic acid), polyvinyl methyl ketone, poly (4-vinylphenol), poly (acrylic acid -co-styrene), oxazoline polymers, polyalkyleneimines, maleic and maleic anhydride copolymers, hydroxyethylcellulose and
- the metal salt eg zinc chloride
- metal cyanide salt ie at least one molar ratio of cyanide-free metal salt to metal cyanide salt of 2 , 25 to 1.00
- the metal cyanide salt eg, potassium hexacyanocobaltate
- the organic complexing ligand eg, tertiary butanol
- the organic complex ligand can be present in the aqueous solution of the cyanide-free metal salt and / or the metal cyanide salt, or it is added directly to the suspension obtained after precipitation of the double metal cyanide compound. It has proven to be advantageous to mix the aqueous solutions of the cyanide-free metal salt and the metal cyanide salt and the organic complex ligands with vigorous stirring.
- the suspension formed in the first step is subsequently treated with a further complex-forming component.
- the complex-forming component is preferably used in a mixture with water and organic complex ligands.
- a preferred method for carrying out the first step is carried out using a mixing nozzle, particularly preferably using a jet disperser as described in WO-A 01/39883.
- the isolation of the solid (i.e., the precursor of the inventive catalyst) from the suspension is accomplished by known techniques such as centrifugation or filtration.
- the isolated solid is then washed in a third process step with an aqueous solution of the organic complex ligand (e.g., by resuspension and subsequent reisolation by filtration or centrifugation).
- an aqueous solution of the organic complex ligand e.g., by resuspension and subsequent reisolation by filtration or centrifugation.
- water-soluble by-products such as potassium chloride
- the amount of the organic complex ligand in the aqueous washing solution is between 40 and 80 wt .-%, based on the total solution.
- the aqueous washing solution further complex-forming component, preferably in the range between 0.5 and 5 wt .-%, based on the total solution added.
- non-aqueous solutions for further washing operations e.g. a mixture of organic complexing ligand and other complexing component.
- the isolated and optionally washed solid is then, optionally after pulverization, at temperatures of generally 20 - 100 ° C and at pressures of generally 0.1 mbar to atmospheric pressure (1013 mbar) dried.
- the DMC catalyst can be used, for example, in a proportion, based on the total mass of starting compound and epoxide (I) used, of> 1 ppm to ⁇ 1000 ppm and preferably of> 10 ppm to ⁇ 500 ppm.
- the metered addition of one or more epoxides and of the carbon dioxide can take place simultaneously or sequentially, with the entire amount of carbon dioxide being able to be added all at once or metered over the reaction time.
- a dosage of carbon dioxide takes place.
- the dosage of one or more epoxides is carried out simultaneously or sequentially to the carbon dioxide dosage. If several epoxides are used for the synthesis of the polyether carbonates, their dosage can be carried out simultaneously or sequentially via separate dosages or via one or more dosages, where at least two Epoxides are dosed as a mixture.
- the concentration of free epoxides during the reaction in the reaction mixture is preferably> 0 to ⁇ 40% by weight, more preferably> 0 to ⁇ 25% by weight, most preferably> 0 to ⁇ 15% by weight (in each case based on the Weight of the reaction mixture).
- an excess of carbon dioxide based on the calculated amount of incorporated carbon dioxide in the polyether carbonate is used because, due to the inertness of carbon dioxide, an excess of carbon dioxide is advantageous.
- the amount of carbon dioxide can be set by the total pressure at the respective reaction conditions. As the total pressure (absolute), the range of 0.01 to 120 bar, preferably 0.1 to 110 bar, more preferably from 1 to 100 bar for the copolymerization for the preparation of the polyether carbonates has proved to be advantageous. It has also been found that the copolymerization for the preparation of the polyether is advantageously carried out at 50 to 150 ° C, preferably at 60 to 145 ° C, more preferably at 70 to 140 ° C and most preferably at 90 to 130 ° C.
- the reaction stops. At temperatures above 150 ° C, the amount of unwanted by-products increases sharply. Furthermore, it should be noted that the CO 2 passes in the choice of pressure and temperature from the gaseous state as possible in the liquid and / or supercritical fluid state. However, CO 2 may also be added to the reactor as a solid and then converted to the liquid and / or supercritical fluid state under the chosen reaction conditions.
- one or more starter polyols, carbon dioxide and the DMC catalyst are initially charged in the reactor system in the preparation of the polyether and one or more low molecular weight starter compounds are continuously together with one or more
- the dosage of the low molecular weight starter compounds and one or more alkylene oxides is terminated simultaneously, or the low molecular weight starter compounds and a first portion of one or more alkylene oxides are first added together and then added to the second subset of one or more alkylene oxides, wherein the sum of the first and second subset of one or more Alkylenox iden the total amount of the amount used in one or more alkylene oxides corresponds.
- the first subset is 60 to 90 wt .-% and the second subset is 40 to 10 wt .-% of the total amount of alkylene oxide used.
- the amount of starter compounds which are added continuously during the preparation of the polyether carbonate in the reactor is preferably at least 20 mol% equivalents, particularly preferably 70 to 95 mol% equivalents (in each case based on the total amount of starter compounds).
- a post-reaction phase can follow, in which the consumption of alkylene oxide can be quantified by monitoring the pressure.
- the polymerization can be started with formaldehyde (if appropriate after applying a vacuum or by stripping to remove unreacted alkylene oxides), if appropriate after addition of another catalyst.
- the content of free epoxide (alkylene oxide) in the preparation of the polyether carbonates should not exceed 15% by weight in the reaction mixture of the stirred tank (see, for example, WO-A 2004/081082, page 3, line 14).
- the metering rate of the epoxide should be adjusted accordingly, so that the epoxide reacted sufficiently quickly and by the addition of epoxy, the content of free epoxide 15 wt .-%. in the reaction mixture of the stirred tank does not exceed. It is possible to feed the carbon dioxide continuously or discontinuously.
- the pressure of the carbon dioxide may vary in the copolymerization.
- the preparation of the polyether carbonates may be preceded by activation steps (in the presence or absence of carbon dioxide) to activate the DMC catalyst used.
- activation steps in the presence or absence of carbon dioxide
- the upstream step for activating the DMC catalyst can be carried out, for example, in the stirred tank, which is then used for copolymerization, or alternatively in an upstream reactor, which in turn can be a stirred tank or a tubular reactor.
- the activation step of the DMC catalyst is a step in which a partial amount of the epoxide (I), optionally in the presence of CO2, is added to the DMC catalyst and then the addition of the epoxide is interrupted, due to a subsequent exothermic chemical reaction
- the process step of the activation is the period of time from the addition of the subset of alkylene oxide compound, optionally in the presence of CO 2 , to the DMC catalyst until the reaction time is reached
- the activation step may be preceded by a step of drying the DMC catalyst and optionally the H-functional initiator compound by increased temperature and / or reduced pressure, wherein this drying step is not part of the activation step in the sense of the present invention.
- the starting compound used for the synthesis of the polyether carbonates is a poly (oxyalkylene) polyol (ie a polyether polyol) or a poly (oxyalkylene) carbonate polyol (ie a product obtainable from an H-functional initiator compound by copolymerization carbon dioxide with epoxide), each having an average functionality of> 2.0 to ⁇ 5.0, a number average molecular weight of> 450 g / mol to ⁇ 1000 g / mol.
- the average functionality can also be> 2.3 to ⁇ 4.0.
- poly (oxyalkylene) polyols and poly (oxyalkylene) carbonate polyols can also have an OH number of 200 mg KOH / g to ⁇ 300 mg KOH / g.
- the OH number can be determined using the DIN 53240 standard.
- R 1 , R 2 and R 3 are hydrogen and R 4 is hydrogen, methyl, ethyl, n-propyl, iso-propyl, n-butyl, sec-butyl , iso-butyl, tert-butyl, cyclohexyl and / or phenyl. It is preferred here that R 4 is methyl.
- the epoxide used is propylene oxide. Also preferred are mixtures of propylene oxide and ethylene oxide to give mixed polyether blocks. It is also possible successively to use several mixtures of propylene oxide and ethylene oxide with different mixing ratios.
- the double metal cyanide catalyst comprises zinc, cobalt and tert-butanol.
- this catalyst additionally comprises> 5% by weight to ⁇ 80% by weight, based on the amount of catalyst, of a polyether having a number average molecular weight of> 500 g / mol.
- the proportion of the polyether may also be> 10% by weight to ⁇ 70% by weight and more preferably> 15% by weight) to ⁇ 60% by weight>.
- Particularly suitable polyethers are, for example, polyether polyols having an average OH functionality of 2 to 8 and a number average molecular weight of> 1000 g / mol to ⁇ 10000 g / mol and preferably of> 1000 g / mol to ⁇ 5000 g / mol.
- poly (oxypropylene) polyols in particular diols and / or triols having a number average molecular weight of> 1000 g / mol to ⁇ 4000 g / mol.
- the polyethercarbonate used to prepare the polyethercarbonate-polyoxymethylene block copolymers is prepared (if appropriate immediately) prior to the polymerization of the formaldehyde in the same reaction vessel and reacted without purification steps (except, if appropriate, distillative removal of volatile components).
- the polyether carbonate used to prepare the polyethercarbonate-polyoxymethylene block copolymers is prepared from the starting materials starter compound, epoxide and carbon dioxide.
- the product mixture obtained in the preparation of the polyethercarbonate-polyoxymethylene block copolymers is reacted with cyclic carbonic and / or carbonic acid esters (to hydroxy-functionalized polyethercarbonate-polyoxymethylene block copolymers).
- the further reaction can be carried out directly in the present reactor (in situ) or a second reactor without prior isolation of the polyethercarbonate-polyoxymethylene block copolymers.
- the reaction mixture may be timed, e.g. after transfer or storage, for further use. Preference is given to using product mixtures for the further reaction in which the polyethercarbonate-polyoxymethylene block copolymers were obtained in the absence of solvents.
- cyclic carbonic acid esters are cyclic carbonates of the formula (XI),
- R 19 , R 20 , R 21 , R 22 , R 23 and R 24 independently of one another are hydrogen, a linear or branched, optionally heteroatom-containing C 1 to C 22 alkyl radical, a linear or branched, mono- or polyunsaturated, optionally heteroatom-containing Cl are C22 to C22 alkenyl radical or an optionally heteroatom-containing, optionally mono- or polysubstituted C6 to C18 aryl radical or may be members of a saturated or unsaturated, optionally heteroatom-containing 4 to 7-membered ring or polycyclic system, n is an integer greater than or equal to 0, preferably 0 , 1, 2 or 3, and R 23 and R 24 may each be different in repeating units (n> 1), wherein the compounds of formula (XI) may also be substituted by chlorine, bromine, nitro groups or alkoxy groups.
- Preferred compounds of the formula (XI) are ethylene carbonate, propylene carbonate, 2,3-butanediol carbonate, 2,3-pentanediol carbonate, 2-methyl-1,2-propanediol carbonate, 2,3-dimethyl-2,3- butanediol carbonate, trimethylene carbonate, neopentyl glycol carbonate (5,5-dimethyl-1,3-dioxan-2-one), 2,2,4-trimethyl-1,3-pentanediol carbonate, 2,2-dimethyl-1,3-butanediol carbonate, 1 , 3-butanediol carbonate, 2-methyl-1,3-propanediol carbonate, 2,4-pentanediol carbonate, 2-methyl-butan-1,3-diol carbonate, TMP monoallyl ether carbonate, pentaerythritol diallyl ether carbonate, 5- (2-hydroxyethy
- propylene carbonate trimethylene carbonate and neopentyl glycol.
- the cyclic carbonates are at least partially identical to the comonomers.
- cyclic carboxylic acid esters are aliphatic or aromatic lactones containing an ester bond in the ring, preferably compounds of the formulas (XII), (XIII) or (XIV),
- R, R, R and R independently of one another represent hydrogen, a linear or branched, optionally heteroatom-containing C 1 to C 22 alkyl radical, a linear or branched, mono- or polyunsaturated, optionally heteroatom-containing C 1 to C 22 alkenyl radical or an optionally mono- or polysubstituted optionally C6 to C18 aryl radical containing heteroatoms or may be members of a saturated or unsaturated, optionally containing heteroatoms 4-7 membered ring or polycyclic system, wherein the compounds of formula XII may also be substituted by chlorine, bromine, nitro groups or alkoxy groups, n an integer greater than or equal to 1, preferably 1, 2, 3 or 4, and R 27 and R 28 may each be different in repeating units (n> 1).
- Preferred compounds of the formulas (XII), (XIII) or (XIV) are 4-membered ring lactones such as ⁇ -propiolactone, ⁇ -butyrolactone, ⁇ -isovalerolactone, ⁇ -caprolactone, ⁇ -isocaprolactone, ⁇ -methyl- ⁇ -valerolactone,
- 5-membered ring lactones such as ⁇ -butyrolactone, ⁇ -valerolactone, 5-methyl-furan-2 (3H) -one, 5-methylidenedihydrofuran-2 (3H) -one, 5-hydroxy-furan-2 (5H) -one, 2-benzofuran -l (3H) -one and 6-methyl-2-benzofuran-1 (3H) -one,
- 6-membered ring lactones such as ⁇ -valerolactone, 1,4-dioxan-2-one, dihydrocoumarin, 1H-isochromene-1-one, 8H-pyrano [3,4-b] pyridine-8-one, 1,4 Dihydro-3H-isochromen-3-one, 7,8-dihydro-5H-pyrano [4,3-b] pyridines-5-one, 4-methyl-3,4-dihydro-1H-pyrano [3,4- b] pyridine-1-one, 6-hydroxy-3, 4-dihydro-1H-isochromen-1-one, 7-hydroxy-3,4-dihydro-2H-chromen-2-one, 3-ethyl-1 H-isochromen-1-one, 3- (hydroxymethyl) -1H-isochromen-1-one, 9-hydroxy-1H, 3H-benzo [de] isochromen-1-one, 6,7-dimethoxy-1, 4 dihydro-3H-is
- 7-membered ring lactones such as ⁇ -caprolactone, p-dioxanone and 1,5-dioxepan-2-one, 5-methyloxepan-2-one, oxepane-2,7-dione, thiepan-2-one, 5-chlorooxepan 2-one, (4S) -4- (propan-2-yl) oxepan-2-one, 7-butyloxepan-2-one, 5- (4-aminobutyl) oxepan-2-one, 5-phenyloxepan-2 on, 7-hexyloxepan-2-one, (5S, 7S) -5-methyl-7- (propan-2-yl) oxepan-2-one, 4-methyl-7- (propan-2-yl) oxepan 2-one, higher-linked ring lactones, such as (7 lbs) oxacycloheptadec-7-en-2-one.
- ⁇ -caprolactone and dihydrocoumarin are particularly preferred.
- the aliphatic or aromatic lactones are at least partially identical to the co-monomers.
- cyclic carboxylic acid esters are lactides containing two or more ester bonds in the ring, preferably compounds of the formula (XV),
- R, R, R and R have the abovementioned meaning, and m and n independently of one another are an integer greater than or equal to 1, preferably 1, 2, 3 or 4, and R 25 and R 26 in repeating units (m> l) and R 27 and R 28 may each be different in repeating units (n> 1).
- Preferred compounds of the formula (XV) are
- Glycolide (1,4-dioxane-2,5-dione), L-lactide (L-3,6-dimethyl-1,4-dioxane-2,5-dione), D-lactide, DL-lactide, mesolactide and 3-methyl-1,4-dioxane-2,5-dione, 3-methyl-6- (prop-2-en-1-yl) -l, 4-dioxane-2,5-dione, 3-hexyl 6-methyl-1,4-dioxane-2,5-dione, 3,6-di (but-3-en-1-yl) -l, 4-dioxane-2,5-dione (each including optically active forms ).
- L-lactide is L-lactide
- the lactides are at least partially identical to the further comonomers.
- the product mixture obtained in the preparation of the polyethercarbonate-polyoxymethylene block copolymers or after the further reaction with cyclic carboxylic acid or carbonic esters (optionally without further purification steps) is converted into carboxylic acid-functionalized polyethercarbonate-polyoxymethylene by reaction with cyclic anhydrides. Reacted block copolymers.
- the further reaction can be carried out directly in the present reactor (in situ) or a second reactor without prior isolation of the polyethercarbonate-polyoxymethylene block copolymers.
- the reaction mixture may be timed, e.g. after transfer or storage, for further use.
- cyclic anhydrides used are preferably compounds of the formula (VIII), (IX) or (X)
- R 7 and R 8 are hydrogen, halogen, linear or branched, optionally heteroatom-containing C 1 -C 22 -alkyl, linear or branched, optionally heteroatom-containing, mono- or polyunsaturated C 1 -C 22 -alkenyl or optionally heteroatom-containing, optionally or polysubstituted C6-C18-aryl substituents or R 7 and R 8 are members of a saturated or unsaturated, optionally heteroatom-containing 4 to 7 be a membered ring or polycyclic system, preferably R 7 and R 8 together give a benzene ring,
- R 9 , R 10 , R 11 and R 12 are hydrogen, linear or branched, optionally heteroatom-containing C 1 -C 22 -alkyl, linear or branched, optionally containing heteroatoms, containing one or more polyunsaturated C 1 -C 22 -alkenyl or optionally heteroatoms , optionally mono- or polysubstituted C6-C18-aryl substituents or may be members of a saturated or unsaturated, optionally heteroatom-containing 4 to 7-membered ring or polycyclic system, and
- R 13 , R 14 , R 15 , R 16 , R 17 and R 18 are hydrogen, linear or branched, optionally heteroatom-containing C 1 -C 22 -alkyl, linear or branched, optionally heteroatom-containing, mono- or polyunsaturated Cl-C22- Alkenyl or optionally heteroatom-containing, optionally mono- or polysubstituted C6-C18-aryl substituents or may be members of a saturated or unsaturated, optionally heteroatom-containing 4 to 7-membered ring or polycyclic system, where the compounds of the formula (VIII) and (IX) and (X) may also be substituted by chlorine, bromine, nitro groups or alkoxy groups.
- Preferred compounds of the formula (VIII), (IX) or (X) are succinic anhydride, maleic anhydride, phthalic anhydride, 1,2-cyclohexanedicarboxylic anhydride, diphenic acid anhydride, tetrahydrophthalic anhydride, methyltetrahydrophthalic anhydride, norbornene diacid anhydride and their chlorination products, succinic anhydride, glutaric anhydride, diglycolic anhydride, 1 , 8-naphthalic anhydride, succinic anhydride, dodecenyl succinic anhydride, tetradecenylsuccinic anhydride, hexadecenylsuccinic, octadecenyl succinic anhydride, 3- and 4-nitrophthalic anhydride, tetrachlorophthalic anhydride, tetrabromophthalic anhydride, itaconic anhydride, dimethyl
- the cyclic anhydrides are at least partially identical to the co-monomers.
- reaction mixture can be used at different times, for example after transfer or storage, for further reaction. Preference is given to using product mixtures for the further reaction in which the polyethercarbonate-polyoxymethylene block copolymers were obtained in the absence of solvents.
- further additives which catalyze, for example, the reaction of carboxy groups with epoxides can be added to the mixture.
- Suitable additives are, for example, tetraalkylammonium halides NR4X, where R is an alkyl radical and different substituents R may differ from one another, and X is a fluoride, chlorine, bromine, iodine halide anion, amines, especially tertiary amines such as triethylamine or DABCO , DMAP, DBU, TBD, MTBD, imidazole or N-alkylated imidazoles such as N-methylimidazole or trialkyl or triarylphosphines, in particular triphenylphosphine.
- R is an alkyl radical and different substituents R may differ from one another
- X is a fluoride, chlorine, bromine, iodine halide anion, amines, especially tertiary amines such as triethylamine or DABCO , DMAP, DBU, TBD, MTBD, imidazole or
- the process further comprises the step of the reaction of the product mixture obtained in the preparation of the polyethercarbonate-polyoxymethylene block copolymers or after the further reaction with cyclic carboxylic acid or carbonic acid esters and / or cyclic anhydrides and / or epoxides (optionally without further Purification steps) with isocyanates.
- the further reaction can be carried out directly in the present reactor (in situ) or a second reactor without prior isolation of the polyethercarbonate-polyoxymethylene block copolymers.
- the reaction mixture can be used at different times, for example after transfer or storage, for further reaction.
- the isocyanate is an aliphatic or aromatic di- or polyisocyanate and the product obtained is a polyurethane or a polyamide.
- aliphatic or aromatic di- or polyisocyanates examples include 1, 4-butylene diisocyanate, 1,5-pentane diisocyanate, 1,6-hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI), 2,2,4- and / or 2,4,4 -Trimethylhexamethylendiisocyanat, the isomeric bis (4,4'-isocyanatocyclohexyl) methanes or mixtures thereof any isomer content, 1, 4-cyclohexylene diisocyanate, 1, 4-phenylene diisocyanate, 2,4- and / or 2,6-toluene diisocyanate (TDI), 1 , 5-naphthylene diisocyanate, 2,2'-and / or 2,4'- and / or 4,4'- Diphenylmethane diisocyanate (MDI) and / or higher homologs (polymeric MDI), 1,3-and /
- isocyanate from the diphenylmethane diisocyanate series.
- modified diisocyanates containing uretdione, isocyanurate, urethane, carbodiimide, uretonimine, allophanate, biuret, amide, iminooxadiazinedione and / or oxadiazinetrione structure as well as unmodified polyisocyanate having more than 2 NCO can also be proportionally added.
- the isocyanate is a prepolymer obtainable by reaction an isocyanate having an NCO functionality of> 2 and polyols having a molecular weight of> 62 g / mol to ⁇ 8000 g / mol and OH functionalities of> 1, 5 to ⁇ 6.
- the invention relates to polyethercarbonate-polyoxymethylene block copolymers preparable by a process according to the invention.
- the polyethercarbonate-polyoxymethylene block copolymers have a number average molecular weight of ⁇ 15,000 g / mol, preferably ⁇ 7,500 g / mol, more preferably ⁇ 5,000 g / mol.
- the number average molecular weight can be determined, for example, by GPC against polypropylene glycol standards, or, depending on the nature of the end group, via the OH number or acid number or by NMR spectroscopy, as described in the experimental section.
- the polyethercarbonate-polyoxymethylene block copolymers have a viscosity at 20.degree. C. of ⁇ 50,000 mPa.s, preferably of ⁇ 20,000 mPa.s, more preferably of ⁇ 5,000 mPa.s. The determination of the viscosity is described in the experimental part.
- the polyethercarbonate-polyoxymethylene block copolymers obtainable by the process according to the invention have a low content of by-products and can be processed without difficulty, in particular by reaction with chain extenders to form polyurethanes.
- polyethercarbonate-polyoxymethylene block copolymers having a functionality of at least 2 are preferably used.
- Polyethercarbonate-polyoxymethylene block copolymers obtainable by the process according to the invention can be used in applications such as washing and cleaning agent formulations, drilling fluids, fuel additives, ionic and nonionic surfactants, lubricants, process chemicals for paper or textile production or cosmetic formulations.
- the invention therefore also relates to the use of polyethercarbonate-polyoxymethylene block copolymers according to the invention for the preparation of polyurethane polymers.
- the polyurethane polymers are polyurethane flexible foams or rigid polyurethane foams.
- the polyurethane polymers are thermoplastic polyurethane polymers.
- the present invention also relates to a polyethercarbonate-polyoxymethylene block copolymers obtainable by a process according to the invention.
- the invention also includes the use of functionalized polyoxymethylene block copolymers according to the present invention for the preparation of polyamides, polyurethanes, detergent and cleaner formulations, drilling fluids, fuel additives, ionic and nonionic surfactants, lubricants, process chemicals for the paper or textile production or cosmetic formulations.
- FIG. 1 a reactor arrangement for carrying out the process according to the invention used polyethercarbonates:
- GPC gel permeation chromatography
- the deviation of the number-average molecular weight determined by GPC from the average molecular weight determined by the OH number is due to the use of calibration standards with structure different from PET-1 (polystyrene).
- the DMC catalyst was prepared according to Example 6 of WO-A 01/80994.
- Isocyanates used Isocyanate 1 with an average functionality of 2.6 and an NCO value of 31.1-31.1% containing 42.4% 4,4'-MDI, 12.6% 2,4'-MDI, 2 , 2% 2,2'-MDI (Desmodur VP PU 0325 from Bayer).
- the formaldehyde source used was paraformaldehyde (CAS [30525-89-4]) from Aldrich (catalog number 16005, lot # SZBB0250V). Description of the methods:
- EG - O - PE n - PEC 2- " / - CH, 0. , - EG, where EG stands for an end group, ie Gt or TC.
- the average molecular formula can be determined by the M.W. be calculated according to:
- IR Infrared
- Electrospray mass spectrometry Measurements were taken on the LTQ Orbitrap XL instrument from Thermo Fisher Scientific; Samples were diluted with MeOH. The OH number (hydroxyl number) was determined on the basis of DIN 53240-2, but using N-methylpyrrolidone instead of THF / dichloromethane as the solvent. It was titrated with 0.5 molar ethanolic KOH solution (endpoint detection by potentiometry). When The test substance was castor oil with an OH number specified by the certificate.
- the unit in "mgKce / g" refers to mg [KOH] / g [polyol]
- the acid number was determined on the basis of (DIN EN ISO 2114), but titrated with a 0.5 molar methanolic potassium hydroxide solution instead of an ethanolic potassium hydroxide solution. Endpoint recognition was performed by potentiometry.
- the unit in "mgKce / g" refers to mg [KOH] / g [polyacid]
- the determination of the viscosity was carried out on the device Physica MCR 501 Rheometer Anton Paar. It was a cone-plate configuration with a spacing of 50 ⁇ chosen (measuring system DCP25). 0.1 g of the substance was applied to the rheometer plate and subjected to a shear of 0.01 to 1000 1 / s at 25 ° C and measured for 10 min every 10 s the viscosity. Indicated is the viscosity averaged over all measuring points.
- TGA thermogravimetric analyzes
- a test apparatus consisting of a 970 ml stainless steel autoclave ("depolymerization reactor” R1) and a 1700 ml stainless steel autoclave (“polymerization reactor” R2) was used, via a heatable and valve closable bridge to transfer the formaldehyde generated in R1 -Gases were interconnected.
- the bridge consisted of two heatable 1/4-inch capillaries, which were connected via a heatable 200 ml stainless steel container, which was filled with 100 g of anhydrous molecular sieve A3 as a water absorber. Both reactors were equipped with Hohlwellenrmixer and manometer and independently heated.
- the gas supply to Rl was via a dip tube.
- the metering rate m in Rl was measured with a mass flow controller (MFC 1,
- CFC2 capacity: 700 g / min
- R2 had a liquid supply line through which epoxide was added.
- the epoxide was added by pressurizing the epoxy storage vessel with nitrogen gas under a pressure which was at least 10 bar above the reaction pressure p, the mass flow m CFC3 being controlled by a Coriolis flow regulator (CFC3,
- Capacity 200 g / min) was regulated.
- a third supply line allowed the addition of further liquid reagents via an HPLC pump.
- R2 was a heatable 1/4-inch capillary as a gas outlet, which was equipped with a heatable back pressure regulator (BPR), which ensured a constant pressure p in the reactor system.
- BPR heatable back pressure regulator
- the pressure reactors used in the examples had a height (inside) of 21 cm (R1) and 15 cm (R2) and an inner diameter of 10 cm (R1 and R2).
- the reactors were equipped with an electric heating mantle (150 watts maximum heat output). Furthermore, the reactors were equipped with an inlet tube and a thermo sensor with 6 mm diameter, which protruded to 60 mm above the ground in the reactor.
- the hollow-shaft stirrer used in the examples was a hollow-shaft stirrer in which the gas was introduced into the reaction mixture via a hollow shaft of the stirrer.
- the stirrer mounted on the hollow shaft had four arms, a diameter of 50 mm and a height of 19 mm. At each end of the arm there was a gas outlet that was 3mm in diameter.
- the rotation of the stirrer produced a negative pressure in such a way that the gas present above the reaction mixture (CO 2 and / or argon or nitrogen and possibly formaldehyde) was sucked off and introduced into the reaction mixture via the hollow shaft of the stirrer.
- Example 1 Preparation of a poly (oxypropylene) carbonate-polyoxymethylene block copolymer and reaction with 4-toluene isocyanate
- m in Rl was set to 300 g / h and the system pressure and m in m kept constant over the reaction time.
- the bridge was heated before the absorber to 140 ° C, absorber and transfer to R2 to 120 ° C.
- the interior of R2 and the gas outlet capillary were heated to 60 ° C, the BPR to 140 ° C.
- gas outlet and BPR The interior of Rl was heated to 125 ° C and introduced gaseous formaldehyde in R2 over 7 h.
- m was set to 0 g / h in m , the bridge was shut off and Rl and R2 were on
- TGA thermogravimetric analysis
- Stage 2 decomposition temperature 341.54 ° C, relative weight loss 79.64%.
- the average empirical formula is, according to 'H-NMR spectroscopy, TC-0-PE32,45-PEC8,65- (CH2O) i6,05-C.
- the product thus contains on average 16,05 oxymethylene groups per molecule.
- the average molecular weight is 3534 g / mol according to 'H-NMR spectroscopy.
- the IR spectrum is neither identical to the IR spectrum of paraformaldehyde nor to the IR spectrum of PEC-1.
- the NH and C O stretching vibrations can be assigned to carbamate units.
- the appearance of these bands demonstrates that the reaction of the terminal OH groups with tolyl isocyanate was successful.
- the absence of an NCO band at 2261 cm -1 shows that no free 4-tolyl isocyanate is present in the product
- the appearance of a new band at 968 cm -1 indicates the presence of oxymethylene groups.
- Inventive Example 1 demonstrates the preparation of a poly (oxypropylene) carbonate-polyoxymethylene block copolymer and subsequent reaction of the hydroxy functional groups with an isocyanate.
- Example 2 Preparation of a pory (oxypropylene) carbonate diol and conversion to a bicarboxy-functional poly (oxypropylene) carbonate-polyoxymethylene block copolymer
- Rl were charged 180.33 g (6.011 mol) of paraformaldehyde, 4.18 g (0.013 mol) of 4-dodecylbenzenesulfonic acid, 3.2 g (0.011 mol) of phosphorus pentoxide and 100.05 g of paraffin.
- the bridge was heated to 140 ° C. upstream of the absorber, absorber and transfer to R2 to 120 ° C., gas outlet capillary to 60 ° C. and BPR to 140 ° C.
- R2 was cooled to 60 ° C internal temperature. After reaching the temperature, a solution of 7.22 g (0.011 mol) of dibutyltin dilaurate (DBTL) in 25 ml of dichloromethane in R2 was introduced via the HPLC pump at a flow rate of 5 ml / min. Then Rl was heated with stirring at 50 U / min to 125 ° C internal temperature and introduced after reaching the temperature for 5 h gaseous formaldehyde in R2.
- DBTL dibutyltin dilaurate
- Viscosity 0.52 Pa-s.
- TGA thermogravimetric analysis
- Stage 1 decomposition temperature 142.40 ° C, relative weight loss 6.80%
- the average molecular formula is Gt-0-PE28,9i-PEC2,63- (CH20) 4,29-Gt by 'H NMR spectroscopy.
- the product thus contains an average of 4.29 oxymethylene groups per molecule.
- the average molecular weight is 2323 g / mol according to 'H-NMR spectroscopy.
- the IR spectrum is neither identical to the IR spectrum of paraformaldehyde nor to the IR spectrum of PET-1.
- the band at 1737 cm -1 shows the presence of polyethercarbonate blocks, and the appearance of a band at 968 cm -1 indicates the presence of oxymethylene groups.
- Example 2 demonstrates the preparation of a carboxy-functional poly (oxypropylene) carbonate-polyoxymethylene block copolymer wherein the preparation of the polyethercarbonate block and the preparation of the polyoxymethylene block were carried out successively in the same reaction vessel without intermediate purification of the polyether carbonate.
- Stage 1 decomposition temperature 128.87 ° C, relative weight loss 61.83%
- Stage 2 Decomposition Temperature 155.38 ° C, Relative Weight Loss 16.38%
- the comparison of Examples 1 and 2 with Comparative Example 1 shows that the polyethercarbonate-polyoxymethylene block copolymers of this invention exhibit increased thermal stability over oligomeric polyoxymethylene homopolymers.
- the polyethercarbonate block copolymers according to the invention obtained in Examples 1 and 2 have higher decomposition temperatures in both the first and the second decomposition stage than the oligomeric polyoxymethylene homopolymer investigated in Comparative Example 1 (144.83 and 142.40 ° C, respectively) 128.87 ° C in the first stage, and 341.54 and 379.64 ° C versus 155.38 ° C in the second stage).
- polyethercarbonate block copolymers according to the invention obtained in Examples 1 and 2 in the first decomposition stage suffer a much smaller amount relative weight loss than the polyoxymethylene homopolymer tested in Comparative Example 1 (11, 06 and 6.8% versus 61, 83% weight loss in Step 1).
- Example 3 Reaction of the bicarboxy-functional poly (oxypropylene carbonate-polyoxymethylene block copolymer with phenyl glycidyl ether obtained in Example 2) Into a glass flask was added 50 g of the bicarboxy-functional poly (oxypropylene) carbonate-polyoxymethylene block copolymer obtained in Example 2 at 14.06 g Weighed out (97.2 mmol) phenyl glycidyl ether and 0.25 g (0.94 mmol) of triphenylphosphine and stirred under reflux and 18 h at 80 ° C, the mixture from yellow to orange discolored The product was used as received. OH number: 38.3 mgKce / g, resulting in a number average molecular weight of 2924 g / mol.
- the OH number indicates that the reaction of the carboxy-terminated poly (oxypropylene) carbonate-polyoxymethylene block copolymer with phenyl glycidyl ether to form a hydroxy-terminated polyoxymethylene block copolymer was successful.
- the average empirical formula is PGE-Gt-O-PE28,94-PEC2,20- (CH2O) 4,35-Gt-PGE by 'H NMR spectroscopy. Compared with the empirical formula of the product from Example 2, no significant change in the PEC and CH20 content is thus observed.
- the average molecular weight is 2583 g / mol according to 'H-NMR spectroscopy.
- Example 4 Reaction of the bicarboxy-functional poly (oxypropylene) carbonate-polyoxymethylene block copolymer obtained in Example 2 with isocyanate 1
- Examples 3 and 4 demonstrate the reaction of a carboxy-functional poly (oxypropylene) carbonate-polyoxymethylene block copolymer with epoxides or isocyanates.
- Example 5 Reaction of the bihydroxy-functional poly (oxypropylene) carbonate-polyoxymethylene block copolymer obtained in Example 3 with isocyanate 1
- Example 5 demonstrates the reaction of a hydroxy-functionalized poly (oxypropylene) carbonate-polyoxymethylene block copolymer with isocyanates.
- Example 6 Preparation of a poly (oxypropylene) carbonate diol and conversion to a bihydroxy-functional poly (oxypropylene) carbonate-polyoxymethylene block copolymer
- the ratio PE: PEC: (CH 2 O) in the product is 28.91: 1.00: 1.16.
- the product mixture thus contains polyethercarbonate-polyoxymethylene block copolymers.
- Example 7 Preparation of a poly (oxypropylene) carbonate diol and reaction to a bihydroxy-functional poly (oxypropylene) carbonate-polyoxymethylene block copolymer
- Rl were charged 169.41 g (5.65 mol) of paraformaldehyde, 4.00 g (0.012 mol) of 4-dodecylbenzenesulfonic acid, 3.31 g (0.011 mol) of phosphorus pentoxide and 103.41 g of paraffin.
- R2 was charged with 251.00 g of PET-1 and 0.157 g of DMC catalyst.
- the ratio PE: PEC: (CH 2 O) in the product is 25.63: 1.76: 1.00.
- this gives an average molecular formula HO-PE22,55-PECi, 55- (CH20) o, 88-H.
- the product mixture thus contains polyethercarbonate-polyoxymethylene block copolymers.
- the IR spectrum is neither identical to the IR spectrum of paraformaldehyde nor to the IR spectrum of PET-1.
- the band at 1743 cm -1 shows the presence of polyether carbonate blocks, and the appearance of a band at 968 cm -1 indicates the presence of oxymethylene units.
- Examples 6 and 7 according to the invention demonstrate the preparation of product mixtures containing poly (oxypropylene) carbonate-polyoxymethylene block copolymers, wherein the preparation of the polyether carbonate block and the preparation of the polyoxymethylene block was carried out successively in the same reaction vessel without intermediate purification of the polyether carbonate and the catalyst for the preparation of the polyether carbonate block with the catalyst for the preparation of the polyoxymethylene block is identical.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Polyesters Or Polycarbonates (AREA)
- Polyethers (AREA)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
Claims
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201480044022.6A CN105408377B (zh) | 2013-06-13 | 2014-06-10 | 聚醚碳酸酯-聚甲醛嵌段共聚物 |
| ES14728985.4T ES2627002T3 (es) | 2013-06-13 | 2014-06-10 | Copolímeros de bloques de polietercarbonato-polioximetileno |
| KR1020157034994A KR20160018546A (ko) | 2013-06-13 | 2014-06-10 | 폴리에테르카르보네이트-폴리옥시메틸렌 블록 공중합체 |
| JP2016518964A JP2016521788A (ja) | 2013-06-13 | 2014-06-10 | ポリエーテルカーボネイト−ポリオキシメチレンブロック共重合体 |
| RU2016100416A RU2016100416A (ru) | 2013-06-13 | 2014-06-10 | Полиэфиркарбонат-полиоксиметилен- блок- сополимеры |
| SG11201509857PA SG11201509857PA (en) | 2013-06-13 | 2014-06-10 | Polyethercarbonate-polyoxymethylene block copolymers |
| EP14728985.4A EP3008100B1 (de) | 2013-06-13 | 2014-06-10 | Polyethercarbonat-polyoxymethylen-block-copolymere |
| US14/895,535 US9790328B2 (en) | 2013-06-13 | 2014-06-10 | Polyethercarbonate-polyoxymethylene block copolymers |
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|---|---|---|---|
| EP13171772 | 2013-06-13 | ||
| EP13171772.0 | 2013-06-13 |
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| WO2014198689A1 true WO2014198689A1 (de) | 2014-12-18 |
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| PCT/EP2014/061969 Ceased WO2014198689A1 (de) | 2013-06-13 | 2014-06-10 | Polyethercarbonat-polyoxymethylen-block-copolymere |
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| Country | Link |
|---|---|
| US (1) | US9790328B2 (de) |
| EP (1) | EP3008100B1 (de) |
| JP (1) | JP2016521788A (de) |
| KR (1) | KR20160018546A (de) |
| CN (1) | CN105408377B (de) |
| ES (1) | ES2627002T3 (de) |
| PL (1) | PL3008100T3 (de) |
| RU (1) | RU2016100416A (de) |
| SA (1) | SA515370265B1 (de) |
| SG (1) | SG11201509857PA (de) |
| WO (1) | WO2014198689A1 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3287475A1 (de) * | 2016-08-25 | 2018-02-28 | Covestro Deutschland AG | Verfahren zur herstellung von abbaubaren polyurethanpolymeren und aufarbeitungsverfahren hierfür |
| EP3287476A1 (de) * | 2016-08-25 | 2018-02-28 | Covestro Deutschland AG | Verfahren zur herstellung von polyoxymethylen-block-copolymeren |
| EP3312207A1 (de) * | 2016-10-20 | 2018-04-25 | Covestro Deutschland AG | Verfahren zur herstellung von polyoxyalkylen-oxymethylen-copolymeren bei niedrigen reaktionstemperaturen |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106414532B (zh) | 2014-04-07 | 2019-11-01 | 科思创德国股份有限公司 | 制造聚甲醛嵌段共聚物的方法 |
| CN109563230A (zh) * | 2016-08-25 | 2019-04-02 | 科思创德国股份有限公司 | 制备具有降低的热值的聚氨酯聚合物的方法 |
| EP3533815A1 (de) * | 2018-02-28 | 2019-09-04 | Covestro Deutschland AG | Polyurethanweichschaumstoffe auf basis von polyoxymethylen-polyoxyalkylen-blockcopolymeren |
| US10577327B2 (en) | 2018-06-11 | 2020-03-03 | King Abdulaziz University | Pyridine based ionic fluoride for catalyzing indole and tetrazole formation |
| EP3643730A1 (de) * | 2018-10-26 | 2020-04-29 | Covestro Deutschland AG | Verfahren zur herstellung von polyoxymethylen-polyoxyalkylen-blockcopolymeren |
| EP3653657A1 (de) * | 2018-11-16 | 2020-05-20 | Covestro Deutschland AG | Verfahren zur herstellung von präpolymeren umfassend einen polyoxymethylen-block |
| EP3656797A1 (de) * | 2018-11-22 | 2020-05-27 | Covestro Deutschland AG | Verfahren zur herstellung von polyoxymethylen-polyalkylenoxid-blockcopolymeren |
| WO2020173568A1 (de) * | 2019-02-28 | 2020-09-03 | Covestro Intellectual Property Gmbh & Co. Kg | Isocyanat-terminierte prepolymere für die herstellung von polyurethan-integral-schaumstoffen |
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- 2014-06-10 JP JP2016518964A patent/JP2016521788A/ja active Pending
- 2014-06-10 EP EP14728985.4A patent/EP3008100B1/de not_active Not-in-force
- 2014-06-10 KR KR1020157034994A patent/KR20160018546A/ko not_active Withdrawn
- 2014-06-10 RU RU2016100416A patent/RU2016100416A/ru not_active Application Discontinuation
- 2014-06-10 WO PCT/EP2014/061969 patent/WO2014198689A1/de not_active Ceased
- 2014-06-10 CN CN201480044022.6A patent/CN105408377B/zh not_active Expired - Fee Related
- 2014-06-10 US US14/895,535 patent/US9790328B2/en not_active Expired - Fee Related
- 2014-06-10 ES ES14728985.4T patent/ES2627002T3/es active Active
- 2014-06-10 SG SG11201509857PA patent/SG11201509857PA/en unknown
- 2014-06-10 PL PL14728985T patent/PL3008100T3/pl unknown
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2015
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| EP3287475A1 (de) * | 2016-08-25 | 2018-02-28 | Covestro Deutschland AG | Verfahren zur herstellung von abbaubaren polyurethanpolymeren und aufarbeitungsverfahren hierfür |
| EP3287476A1 (de) * | 2016-08-25 | 2018-02-28 | Covestro Deutschland AG | Verfahren zur herstellung von polyoxymethylen-block-copolymeren |
| EP3312207A1 (de) * | 2016-10-20 | 2018-04-25 | Covestro Deutschland AG | Verfahren zur herstellung von polyoxyalkylen-oxymethylen-copolymeren bei niedrigen reaktionstemperaturen |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3008100B1 (de) | 2017-03-15 |
| SG11201509857PA (en) | 2015-12-30 |
| SA515370265B1 (ar) | 2017-06-14 |
| ES2627002T3 (es) | 2017-07-26 |
| EP3008100A1 (de) | 2016-04-20 |
| PL3008100T3 (pl) | 2017-08-31 |
| CN105408377A (zh) | 2016-03-16 |
| JP2016521788A (ja) | 2016-07-25 |
| US20160130407A1 (en) | 2016-05-12 |
| KR20160018546A (ko) | 2016-02-17 |
| CN105408377B (zh) | 2018-06-22 |
| US9790328B2 (en) | 2017-10-17 |
| RU2016100416A (ru) | 2017-07-18 |
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